This is BEST HTC!!!!!

Instant sensory overload, courtesy of the HTC Sensation™ 4G.

Instant Watchification.
With HTC Watch™, you've got instant access to an entire arsenal of entertainment. New sounds. New games. New releases. Now on-demand.

Total Waitlessness.
With a 1.2Ghz dual core processor primed for the nation's largest 4G network, you can multitask apps, games and gadgets, and download massive movie files without catching a single glimpse of the dreaded buffering bar.

Every Last Detail.
With a streamlined unibody aluminum design, infinite ways to make it yours and an 8-megapixel camera on board, it’s got every detail covered and every detail captured.

Absolute Sense.
With HTC Sense™ improving upon the improvements of Android 2.3, you've got deep social network integration across a ton of different apps, custom HTC widgets, animated displays, automated updates, and infinite ways to customize.

Unpixelated Bliss.
With a massive 4.3" qHD touchscreen, everything you watch — every color, motion, movie, game and Android app — literally jumps off the screen in pixels.

Great phone with only a few glitches

When I first got this phone I was blown away by all the things it does. I still am, and I think its one of the best phones out there, but now that the new has worn off some of the glitches are obvious.
First, there are regular application crashes with the phones basic functions. Text messaging, keyboard input, voice input - all crash once in a while. However, they recover in two seconds or less so its not a huge deal, and it only happens maybe twice a week. The phone is super responsive so you barely even notice when this happens.
The virtual keyboard has a long way to go to catch up to the iphone. Despite the EVO's larger size, its hard to type as accurately as you can on the iphone. I hit the letters and they miss at least a third of the time, no matter how many times I run the calibration utility. The alternate spelling suggestions make up for this most of the time again, but still the iphone is way more accurate.
The threaded text messaging puts your response before the message you answer, so that's confusing until you realize what its doing. It looks like a mess. One really irritating problem is that when you start a new text message, the address book always defaults to the home phone and not the mobile, and you have to go through several steps to get to the mobile number.
Which brings us to the address book. its a disaster, period. There's no place to add notes that I can find, you get seven hits for some people (all identical numbers) even though my google and computer address book are identical and in perfect order, and sometimes you put in a name and it can't find it at all until you type in their phone number directly.
Also, I'd really like to delete Sprint's NASCAR app. In fact, this phone leaves too many apps running and despite what the developers think of their 'timing out' and 'automatic freeing of memory', the phone does slow down to a crawl once in a while unless you manually kill some running apps and processes. When you reach this point the phone is almost unusable, I guess because its running too many apps and downloading updates in the background at the same time, and three times I had to restart the phone manually to clear this problem.
The phone has also restarted itself three times without my permission, once during a call and twice while composing text messages. It may have done so when I wasn't using it, but there's no way to tell.
All that having been said, these are a few problems with an otherwise amazing piece of equipment which functions wonderfully 95% of the time. The screen is large enough that I don't have to carry a laptop with me for business related things, its easy to manage files when its connected to the computer, the web browser is a delight, the speech-to-text is a dream come true and the app list seems endless. The sound and video qualities are fantastic, and the bluetooth reliable. I'm confident they'll improve the software with each release and it will get better.
The camera is awesome, the GPS even better, and Sprint's 3G, 4G and call reliability make this an overall great experience.
Since battery life seems to be a big issue with this one, all I will say is that I knew what I was getting into and did my homework. I found a 3500 mah battery online and it can go over 24 hours without a recharge, or 17 hours with 4G turned on - both with moderate use. The new battery comes with a new backplate, and its kind of big, but I don't care and I'm quite happy with it.

The best android phone compare to price/functionali

Good functionality. Good price.
1) Processor dual core 1.2 GHz - very fast;
2) Display - OLED with diagonal 4.3 in. and resolution 960 x 540;
3) Camera:8.0 MP;
4) Battery capacity just for one day circle.
This is the best phone at 2011 year.

Great Phone

The myTouch4G comes with Android 2.2 OS with an HTC Sense user interface. This will give you support for the Exchange email, calendar, and contacts with the widgets and apps that HTC supports like Friend Stream, HTC Sense launcher, HTC weather, myModes, News, Stocks, Peep, etc. Unfortunately, you will not be able to remove some games and apps that come preloaded on the system. Slightly annoying, but not a killer here. If you do not want to use certain apps you can install Launcher Pro and hide the ones you do not wish to see on the application launch screen.

It would be silly not to include the new WiFi Hotspot utility which is similar to the one HTC EVO 4G is sporting. The service costs $15 a month and will allow your MT4G to be a portable WiFi hotspot. You will be able to share a connection with up to five other devices. This is an awesome feature that will have many people willing to shell out the mere $15 a month for the service.

The phone has a price at $199.99 with a $50 rebate as long as you opt for a 2-year contract or extension. Without the contract the phone is $449.99.

The MT4G is a very solid phone that seems to do just about everything you could want it to do. The sound quality is good on the headset as well as the speakerphone. Download speeds are fast, and the service is great in most locations. T-Mobile is doing it right. This phone gets an 8/10 from me.

perfect, except for the battery life.

I bought this because I needed a new android phone to have to test the software I am developing. it is as good as I expected it to be. at first it was weird because the phone was supposed to have 768 mb of RAM but all the software i installed said it only had 558 (or 500 something). that is because the operating system uses the rest, Nd that is what is left for software to use. the part I do not like at all is the battery. it lasts for only one day, if I use the phone intensely. the WiFi uses the battery a lot, and the second thing is the screen.
that's about it. enjoy your HTC sensation!